Kinerja Pertumbuhan Ikan Nila Merah Yang Diberi Pakan Berbasis Distillers Dried Grain with Sollubles Di Waduk Cirata, Jawa Barat

Abstract

Protein is prime source energy of fish. Protein source in fish provided from fish flour and soy bean meal, both of them still import and make the price of feed being expensive. Hence, it is necessary to find an alternative protein source to decrease feed price. The purpose this research was to observe growth of red tilapia with DDGS feed. This research was performed in March till July 2011 at Cirata lake, West Java and Fish Nutrition Laboratory, Department of Aquaculture, Fisheries and Marine Science Faculty, Bogor Agricultural University. The feed treatment were 30% DDGS (feed A), 40% DDGS (feed B), 50% DDGS (feed C), 0% DDGS (Grade A control feed), and 0% DDGS (Grade B control feed). The proximate analysis showed the testing protein feed were ranging 27,87-28,67%. The best result from testing was 50% DDGS feed with 278 g mean weight of fish, survival rate was 93,67 ± 2,51%, specific growth rate was 1,80 ± 0,04%, total consumption feed 36157 ± 4305 g, protein retention was 33,87 ± 2,69%, fat retention was 84,06 ± 2,50%, feed convertion ratio was 1,58 ± 0,02, and feed efficiency was 63,12 ± 0,86%. Finnaly, it can be concluded that the used 50% DDGS to feed can give good growth for fish.

Protein merupakan sumber energi utama bagi ikan. Protein pada pakan ikan air tawar masih berasal dari tepung ikan dan soy bean meal, kedua bahan masih diimpor sehingga harga pakan menjadi mahal. Oleh karena itu, diperlukan sumber protein alternatif agar harga pakan menjadi kompetitif. Tujuan dari penelitian ini adalah menguji kinerja pertumbuhan ikan nila merah Oreochromis sp. yang diberi pakan berbasis distillers dried grain with soluble (DDGS). Penelitian dilaksanakan pada Maret hingga Juli 2011 di Waduk Cirata, Jawa Barat dan Laboratorium Nutrisi Ikan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor. Pakan uji yang digunakan adalah pakan perlakuan DDGS 30% (pakan A), pakan DDGS 40% (pakan B), pakan DDGS 50% (pakan C), pakan DDGS 0% (pakan kontrol Grade A), dan pakan DDGS 0% (pakan kontrol Grade B). Hasil analisis proksimat menunjukkan protein pakan perlakuan berkisar 27,87- 28,67%. Hasil yang terbaik dari pakan perlakuan pada pakan C dengan bobot ratarata pada akhir pemeliharaan 278 g, kelangsungan hidup 93,67 ± 2,51%, laju pertumbuhan harian 1,80 ± 0,04%, jumlah konsumsi pakan 36157 ± 4305 g, retensi protein 33,87 ± 2,69%, retensi lemak 84,06 ± 2,50%, konversi pakan 1,58 ± 0,02, dan efisensi pakan 63,12 ± 0,86%. Dengan demikian dapat disimpulkan bahwa penggunaan DDGS 50% dalam pakan memberikan pertumbuhan yang baik pada ikan.